He aha ke ʻano o ke kila 4140?

ʻO ke kila 4140 kahi kila kila kaulana i ʻike ʻia no kona ikaika, paʻakikī, a me ka versatility. Aia ia i ka ʻohana o nā kila chromium-molybdenum, e hāʻawi ana i kahi hui kūʻokoʻa o nā waiwai mechanical e lilo ia i mea koho maikaʻi loa no nā noi ʻoihana. Hoʻohana nui nā ʻenekinia, nā mea hana, a me nā mea hana i kēia kila no nā mea āpau mai nā ʻāpana kaʻa a i nā ʻāpana mīkini.

Ma kēia ʻatikala SEO, hōʻike ʻo sakysteel i kahi ʻike piha o4140 kila, e pili ana i kona haku mele ʻana, nā waiwai mekini, nā kaʻina hana wela, a me nā hoʻohana maʻamau.

Hoʻohui o 4140 Steel

ʻO 4140 kahi kila kila haʻahaʻa e hāʻule ana ma lalo o ka ʻōnaehana hoʻohālikelike SAE-AISI. Ua ʻike ʻia ʻo ia ʻoAISI 4140, EN19 (ma ʻEulopa), aSCM440 (ma Iapana). ʻO ka inoa "4140" e pili ana i kahi maʻiʻo alloy kūikawā:

  • Hōʻike ka "41" i kahi kila chromium-molybdenum

  • Hōʻike ka "40" i ka maʻiʻo kalapona ma kahi kokoke (0.40%)

ʻAʻole he kila kila 4140, no ka mea, ʻaʻole lawa ka chromium e hāʻawi i ke kūpaʻa corrosion. Akā, mahalo ʻia no kona ikaika mechanical a me ka paʻakikī ma hope o ka mālama ʻana i ka wela.

Hoʻohui Kimia o 4140 Steel

ʻO ka hui kemika o 4140 ka mea e hāʻawi iā ia i kāna mau waiwai mechanical i hoʻonui ʻia. Aia nā pae maʻamau:

  • Kalapona (C):0.38% – 0.43%

  • Chromium (Cr):0.80% – 1.10%

  • Manganese (Mn):0.75% – 1.00%

  • Molybdenum (Mo):0.15% – 0.25%

  • Silika (Si):0.15% – 0.35%

  • Phosphorus (P):≤ 0.035%

  • Sulfur (S):≤ 0.040%

Hana pū kēia mau mea i mea e hoʻoikaika ai i ka paʻakikī, ke kūpaʻa ʻana, a me ka lōʻihi holoʻokoʻa, e hana ana i ka 4140 i mea hele no ke koi ʻana i nā ʻāpana mechanical.

Na Mea Mechanical o 4140 Steel

Hāʻawi ʻo 4140 i kahi ʻano mea kupanaha o nā waiwai mechanical, ʻoi aku ma hope o ka mālama wela kūpono. Aia kēia mau mea:

  • ʻOi aku ka ikaika:A hiki i 1100 MPa (160 ksi)

  • Ka ikaika hua:Ma kahi o 850 MPa (123 ksi)

  • Elongation ma ka hoomaha:Ma kahi o 20%

  • ʻoʻoleʻa:ʻO ka maʻamau 197 a 235 HB i ke kūlana annealed, a hiki i 50 HRC ma hope o ke kinai ʻana a me ka hoʻoulu ʻana.

Hiki ke ʻokoʻa kēia mau waiwai ma muli o ke ʻano o ke kila (bar, plate, forged) a me ke kūlana mālama wela.

Hana wela o 4140 kila

Heat lapaʻau mea he kī kaʻina e hoʻonui i ka hana o4140 kila. Hiki i ke kila ke hana i nā kaʻina hana penei:

  1. Hoʻopili
    Hoʻomaha mālie ʻia mai kahi o 850°C e hoʻomaikaʻi i ka machinability a hōʻemi i ke kaumaha o loko. ʻO kēia ka hopena i kahi hale palupalu me ka hoʻomaikaʻi ʻana i ka ductility.

  2. Hoʻoponopono maʻamau
    Hoʻomaʻamaʻa ʻia ma kahi o 870 ° C e hoʻomaʻemaʻe i ke ʻano o ka palaoa. Hāʻawi i kahi kaulike o ka ikaika a me ka paʻakikī.

  3. Hoʻopiʻi a hoʻonā
    Hoʻopaʻa ʻia e ka hoʻomehana ʻana a hiki i 845 ° C a me ka hoʻomaloʻo wikiwiki ʻana i ka ʻaila a i ʻole ka wai, a ukali ʻia e ka hoʻomaʻamaʻa ʻana i nā pae paʻakikī i makemake ʻia. Hoʻonui nui kēia i ka ikaika a me ka pale ʻana.

  4. Hoʻopau pilikia
    Hana ʻia ma kahi o 650°C e hōʻemi i ke koena o ke koʻikoʻi mai ka mīkini a i ʻole ka wili.

Ma sakysteel, hāʻawi mākou4140 kilai nā kūlana wela wela e pili ana i nā koi o ka mea kūʻai aku, e hōʻoia ana i ka hana kiʻekiʻe i kāu noi.

Pono o 4140 Steel

  • Lakiō kiʻekiʻe ikaika-a-kaumaha:He kūpono no nā noi paona.

  • Kūʻai luhi maikaʻi:Hoʻopaʻa i ka hoʻouka cyclic, kūpono no nā mea hana a me nā shaft.

  • Paʻa paʻa maikaʻi:Loaʻa ka paʻakikī kiʻekiʻe ma hope o ke kinai ʻana.

  • Mīkini:Maʻalahi machinable i annealed a maʻamau kūlana.

  • Weldability:Hiki ke welded me ka pono preheating a me ka post-weld lapaʻau.

ʻO kēia mau pōmaikaʻi e hoʻolilo i ke kila 4140 i koho waiwai no nā noi ʻenekinia kiʻekiʻe.

Nā noi o 4140 Steel

Ma muli o kona ikaika mechanical a me ka versatility, 4140 kila i hoʻohana 'ia i loko o ka laulā huahelu o nāʻoihana:

ʻOihana Kaʻa

  • Axes

  • Crankshafts

  • Na Gears

  • ʻO nā puʻupuʻu hoʻokele

Aila a me Gas

  • wili kola

  • ʻAmi mea hana

  • Nā lāʻau hoʻohui

Aerospace

  • ʻO nā mea hoʻokele pae

  • Nā lāʻau

  • Nā ʻāpana hoʻolālā kiʻekiʻe

Mekini Hana Hana

  • Hoʻopili

  • Nā ʻāpana hoʻopaʻa ʻia

  • Nā mea paʻa make

  • Nā milo

At sakysteel, ua hoolako mai makou4140 kilanā huahana no nā mea kūʻai aku ma kēia mau ʻāpana, e hāʻawi ana i ka maikaʻi hilinaʻi a me ka hana maʻamau.

Pehea ka 4140 e hoohalike ai me na hao e ae

4140 kūʻē.
Hāʻawi ʻo 4140 i ka pale ʻoi aku ka maikaʻi a me ka ikaika tensile kiʻekiʻe ma muli o nā mea hoʻohui. ʻOi aku ka liʻiliʻi o 1045 akā ʻoi aku ka lōʻihi.

4140 vs. 4340 kila:
Loaʻa iā 4340 ka ʻike nickel kiʻekiʻe, e hāʻawi ana i ka ʻoi aku ka paʻakikī a me ke kūpaʻa luhi. ʻOi aku ka maikaʻi o ka 4140 no ka hoʻohana maʻamau.

4140 kūʻē i ke kila ʻiliahi (e laʻa, 304 a i ʻole 316):
Hāʻawi nā mea kila kila i ka pale ʻana i ka corrosion akā haʻahaʻa ka ikaika. ʻOi aku ka maikaʻi o 4140 i nā noi haʻahaʻa kiʻekiʻe me ka ʻole o ka ʻike ʻana i nā kaiapuni corrosive.

Loaʻa nā palapala ma sakysteel

Hāʻawi ʻo sakysteel i ke kila 4140 i kēia mau ʻano huahana:

  • Nā Bar Poe (Hot Rolled, Cold Drawn, Peeled)

  • Paa Paa a me na Papa

  • Nā Poka a me nā apo i hoʻopaʻa ʻia

  • Hollow Bars and Tubes (ma ke noi)

  • ʻOkiʻoki i ka nui o nā hakahaka pololei

Loaʻa nā huahana a pau meEN10204 3.1 palapala hōʻoia, a ke hāʻawi pū nei mākou i ka mīkini CNC a me nā lawelawe mālama wela.

Ka hopena

ʻO 4140 he kila kila kila nui, hana kiʻekiʻe e kūpono i nā pono o nā noi koi. ʻO ka hui pū ʻana o ka ikaika, ka paʻakikī, a me ka uku-kūʻai ʻana he mea makemake ia no nā ʻenekini mīkini a me nā mea hana ma ka honua holoʻokoʻa.

Inā makemake ʻoe i nā lako maka a i ʻole nā ​​mea i hoʻopau ʻia,sakysteelʻo kāu hoa hilinaʻi no 4140 kila kila. E hoʻokaʻaʻike i kā mākou hui ʻenehana i kēia lā e kūkākūkā i kāu mau koi a loaʻa i kahi ʻōlelo hoʻohālikelike.

Ka manawa hoʻouna: Iulai-29-2025